string to json String - Android File Input Output

Android examples for File Input Output:Json String

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Description

string to json String

Demo Code

/*//from w w w  . j a  v  a2  s . c  o  m
 * Comet4J Copyright(c) 2011, http://code.google.com/p/comet4j/ This code is
 * licensed under BSD license. Use it as you wish, but keep this copyright
 * intact.
 */
//package com.java2s;
import android.annotation.SuppressLint;

import java.util.Locale;

public class Main {
    @SuppressLint("DefaultLocale")
    public static String string2json(String s) {
        if (s == null)
            return "";
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            switch (ch) {
            case '"':
                sb.append("\\\"");
                break;
            case '\\':
                sb.append("\\\\");
                break;
            case '\b':
                sb.append("\\b");
                break;
            case '\f':
                sb.append("\\f");
                break;
            case '\n':
                sb.append("\\n");
                break;
            case '\r':
                sb.append("\\r");
                break;
            case '\t':
                sb.append("\\t");
                break;
            case '/':
                sb.append("\\/");
                break;
            default:
                if (ch >= '\u0000' && ch <= '\u001F') {
                    String ss = Integer.toHexString(ch);
                    sb.append("\\u");
                    for (int k = 0; k < 4 - ss.length(); k++) {
                        sb.append('0');
                    }
                    sb.append(ss.toUpperCase(Locale.US));
                } else {
                    sb.append(ch);
                }
            }
        }
        return sb.toString();
    }
}

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